Stephen Kent, a chief scientist at the Cambridge, Mass.-based innovation division of the defense giant’s Network Centric Systems unit, is being honored for his work in cybersecurity one year after Ray Tomlinson, a principal engineer at Raytheon BBN and widely acknowledged as the inventor of email, was given the same accolades.

Over the past three decades, Kent’s work has laid the foundation for modern Internet and email security encryption methods and standards, according to a statement from Raytheon Co. He developed the world’s first Transmission Control Protocol end-to-end encryption system and is the author of the Internet Protocol security suite standards, which is used in operating systems, firewall products and other systems.

He also helped create Privacy Enhanced Mail and established the Public Key Infrastructure, relying on certificate policies and certification practice statements.

“It is an honor to join the distinguished individuals, including my Raytheon BBN colleague Ray Tomlinson, in the Internet Hall of Fame,” said Kent. “Security and privacy have never been more challenging or important than they are today. Security experts must constantly design and implement leading-edge solutions to address an endless barrage of cyber threats.” 